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A235414
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Number of (n+1)X(2+1) 0..3 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise
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1
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2400, 64848, 1826923, 37684700, 782294899, 12863400296, 211918008383, 2916338598826, 40162081074843, 478836923802673, 5712559047430864, 60505768056073434, 641415858012884696, 6149515043055326889
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=2
..0..2..0....2..1..1....1..0..2....3..1..1....2..2..2....1..1..2....3..0..0
..2..2..0....2..0..0....3..3..2....3..1..1....2..0..0....3..3..1....2..3..0
..3..2..2....0..3..1....2..2..2....3..3..1....1..3..1....0..3..1....3..1..1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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